2003 Ford F350 Diesel Supplement 2nd Printing - Page 58

General Owner's Information Check wheels for end play and noise Lubricate 4x2 wheel bearings Replace wheel bearing grease seal Inspect and lubricate 4x2 ball joints (except F-450/F-550) Inspect and lubricate steering idler arms Replace cabin air filter, if equipped Inspect half-shaft boots, if equipped Exceptions In addition, there are several exceptions to the Normal Schedule. They are listed below: Yellow coolant • 5 years or 100,000 miles - change yellow coolant (whichever comes first) • After initial change - change yellow coolant every 3 years or 50,000 miles Normal vehicle axle maintenance Rear axles and power take off (PTO) units containing synthetic lubricant and light duty trucks equipped with Ford-design axles are lubricated for life. These lubricants are not to be checked or changed unless a leak is suspected, service is required or the axle assembly has been submerged in water. The axle and PTO lubricant should be changed anytime the axle and PTO have been submerged in water. Non-synthetic rear axle lubricants should be replaced every 3,000 miles or 3 months, whichever occurs first, during extended trailer tow operation above 21 Celsius (70 degrees Fahrenheit) ambient and wide open throttle for extended periods above 45 mph. The 3,000 mile lube change interval may be waived if the axle was filled with 75W140 synthetic gear lubricant meeting Ford specification WSL-M2C192-A, part number F1TZ-19580-B or equivalent. Add four ounces of additive friction modifier C8AZ-19B546-A (EST-M2C118-A) or equivalent for complete refill of Traction-Lok rear axles. The axle lubricant should be changed anytime an axle has been submerged in water. 58